Across
- 2. a minor planet
- 3. a drug that is used to kill harmful bacteria and to cure infections
- 4. a science that deals with things that are alive
- 6. heard or able to be heard
- 7. to cause things to agree in time or to make things happen at the same time and speed
- 10. a person who travels into outer space in a spacecraft
- 12. a large room or building where people gather to hear a speech or watch a performance
- 13. arranged in the order that things happened or came to be
- 15. giving or providing many desired things
- 16. a short performance to show the talents of someone
- 17. of or relating to the sound that is heard on a recording or broadcast
- 18. something good that is more than what was expected or required
- 19. a person who studies stars, planets and other objects in outer space
- 20. a biological substance that is dangerous to human beings
- 21. not causing death or serious injury
Down
- 1. a watch or clock that measures time precisely
- 3. extremely large
- 5. the story of a read person's life written by another person
- 8. continuing again and again for a long time
- 9. a description of events in the order they happened
- 11. capable of being slowly destroyed and broken down into very small parts by natural process
- 14. a group of people who gather together to listen to or watch something
- 15. producing good or helpful results or effects
- 17. a symbol that is used in printed text
- 20. kind and generous